Derrell,

I am tracking application state by user in a database, I just don't
see how to interact with the qooxdoo objects (or widgets) that are not
known in the event context without using something like the hash
value. If for example I have a parent/child table structure and I am
displaying the parent record in one qx.ui.window.Window and I am
maintain child records in a separate qx.ui.window.Window. I would like
to update a label containing a running total in the parent record
window after the completion of each child record edit. At the
completion of each child record entry I make a call back to update the
child record but I don't see the application logic can update the
running total widget in parent record window without knowing the
hashcode or some indirect reference to it.

Thanks for your help and patience.

-Chris

On Mon, Mar 25, 2013 at 3:21 PM, Derrell Lipman
<[email protected]> wrote:
> On Mon, Mar 25, 2013 at 3:52 PM, Chris Bunn <[email protected]> wrote:
>>
>> Derrell,
>>
>> Thank you, that is what I am looking for.  In my case the application
>> logic is on the server and the the qooxdoo client is realizing the UI
>> and catching events. When a call back event occurs and the application
>> needs to reference an object that is outside of the event scope if
>> does not know how to identify it. Is it common to maintain client side
>> mappings of hash values to some type of application level object
>> instance id?
>
>
> There are a few problems with keeping object references. Firstly, if the
> page is refreshed, all of those references become invalid. Secondly, you'll
> have to maintain object references for each user. This seems like a lot of
> overhead, whereas you're likely already keeping persistent state at the
> server, via some database or something. Keeping track of program state and
> communicating it with a data model is often a better plan.
>
> Derrell
>
>
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